NPPES file of Aug 9, 2026

Gregory A. Clines, MD, PHD

Endocrinology, Diabetes & Metabolism Physician · Ann Arbor, MI

Gregory A. Clines, MD, PHD is an endocrinology, diabetes & metabolism physician with a practice address in Ann Arbor, Michigan, and NPI 1922177542, issued on Nov 7, 2006. Check the license (Michigan 4301104245, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922177542
Name
Gregory A. Clines
Credential
MD, PHD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License numbers
4301104245 MI
0101232110 VA
Self-reported in NPPES; status is on the state search
Practice location
24 Frank Lloyd Wright Dr, Ann Arbor, MI 48105
Phone
(734) 998-7400
Enumerated
Nov 7, 2006
Record last updated
Feb 10, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140228001707); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 1999
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 24 Frank Lloyd Wright Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jaclyn Abbott, NPPrimary Care Nurse Practitioner1952800435
  2. Alison Affinati, MD, PHDEndocrinology, Diabetes & Metabolism Physician1871983502
  3. Vahan Agbabian, MA, ATCAthletic Trainer1487759676
  4. William Aibinder, MDOrthopaedic Surgery Physician1225474042
  5. Nevin Ajluni, M.D.Endocrinology, Diabetes & Metabolism Physician1407019995
  6. Sarah Akers, LPNLicensed Practical Nurse1063383396

Verify Gregory A. Clines in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301104245
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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95% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

132 Medicare Part D claims for 32 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.

  1. Gregory Clines132
  2. Specialty average2,630

Most prescribed

  1. Alendronate Sodium28 claims
  2. Crysvita26 claims
  3. Levothyroxine Sodium18 claims
  4. Calcitriol12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Regents OF The University OF MichiganAnn Arbor, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gregory A. Clines among 270 endocrinology, diabetes & metabolism physician records in Michigan

Gregory A. Clines, MD, PHD is one of 270 endocrinology, diabetes & metabolism physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 58% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1999 · median 2004 among the 195 with a school on file
  • Record last updated2014 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Michigan

There are 270 endocrinology, diabetes & metabolism physician records in Michigan.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Peter Arvan, MD, PHDAnn Arbor, MI 481051710069240
  2. Richard Auchus, MDAnn Arbor, MI 481051083670251
  3. Charles Burant, MD, PHDAnn Arbor, MI 481051437231966
  4. Liselle Douyon, MDAnn Arbor, MI 481051578645008
  5. Nazanene Esfandiari, MDAnn Arbor, MI 481051164505061
  6. Jennifer Franzese, MDAnn Arbor, MI 481051588747497
  7. Megan Haymart, M.D.Ann Arbor, MI 481051861443160
  8. Craig Jaffe, MDAnn Arbor, MI 481051922181841

Common questions

What is Gregory A. Clines, MD, PHD's NPI number?

Gregory A. Clines, MD, PHD's National Provider Identifier (NPI) is 1922177542, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory A. Clines, MD, PHD located?

The NPPES record lists a practice address at 24 Frank Lloyd Wright Dr, Ann Arbor, MI, 48105. Phone: (734) 998-7400. Providers update this record themselves, so call before visiting.

How can I verify Gregory A. Clines, MD, PHD's license?

NPPES lists Michigan license number 4301104245, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory A. Clines, MD, PHD prescribe under Medicare Part D?

In 2024, Gregory A. Clines, MD, PHD had 132 Medicare Part D claims for 32 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.